x402basequality 0.30

Premium API access tier on lowpaymentfee.com, paid per-call via x402 on Base with USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/subscriptions/8

What it does

This endpoint is part of lowpaymentfee.com, a platform offering a variety of pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all settled via the x402 protocol on the Base network using USDC. The specific endpoint `/api/v1/stripe/subscriptions/8` is labeled "Premium API Access" and costs $0.02 per request (20,000 base units of USDC with 6 decimals = $0.02).

The platform advertises a simple pricing model: $0.02 per request across all endpoints, with no API keys, no rate limits, no minimums, and instant access. Payment is made inline via the x402 payment header using USDC on Base (contract 0x8335…2913). The endpoint accepts POST requests and returns application/json responses.

However, the actual functionality behind this specific "Premium API Access" endpoint is unclear. The name suggests it may be a subscription or access-tier endpoint rather than a data-returning API, but no documentation, request schema, or response examples are available. The docs, pricing, API, and README pages all returned only a "Connect wallet" prompt with no substantive content. Without further documentation, the exact behavior and use case of this endpoint remain uncertain.

Capabilities

x402-paymentusdc-settlementbase-networkper-request-pricingjson-responsepost-method

Use cases

  • —Programmatic access to a premium API tier via x402 micropayments
  • —Agent-driven API consumption without API keys or subscriptions
  • —On-chain settled API access for Web3-native applications

Fit

Best for

  • —Developers wanting keyless, pay-per-use API access
  • —AI agents that can settle x402 payments on Base
  • —Users who prefer crypto micropayments over traditional subscriptions

Not for

  • —Users needing detailed API documentation before purchasing
  • —Applications requiring guaranteed SLAs or support contracts
  • —Users without USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/subscriptions/8 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/subscriptions/8
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 402 challenge, confirming it accepts payments. However, there is no documentation, no request/response schema, no examples, and the purpose of this specific endpoint ('Premium API Access' under a 'stripe/subscriptions' path) is ambiguous. All doc pages returned only 'Connect wallet' with no content.

Warnings

  • —No documentation available — all doc/pricing/API pages return only 'Connect wallet' with no content
  • —The endpoint path '/api/v1/stripe/subscriptions/8' suggests a subscription management endpoint, but its actual functionality is undocumented
  • —No request body schema or response schema provided beyond the x402 outputSchema stub
  • —The relationship between 'stripe' in the URL path and the x402/USDC payment mechanism is unclear

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:16:15Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/txSJ3C
Premium API access tier on lowpaymentfee.com, paid per-call via x402 on Base with USDC. — Clawmart · Clawmart